Part of the John Deere Repair Manuals.
When a planter monitor starts lying mid-season, the 357 pages of Technical Manual TM1270 buy you one thing: a console you can trust again. This John Deere Computer Trak technical manual PDF covers all five monitors, 100 through 300, plus the Monitrol, dual-rate, and population systems, as fitted to six 7000-family planters. Wiring diagrams and harness details trace every circuit from the console back to each seed tube sensor, and test procedures with the Deluxe or Standard test unit walk every monitor through voltage, low-rate, and row-failure checks. Field testing confirms population counts and distance wheel slippage before you commit seed to the ground. Put a meter on a suspect seed tube sensor: less than 1000 ohms in both directions condemns it, while a healthy distance sensor swings from +1 to +8 volts across its 56-slot disk. A false row alarm at planting time costs acres. Bookmarked and crisp, the PDF downloads in minutes and puts the planter back in the field.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 3-35 | Safety, Safety Signs, General, Specifications, Predelivery, Delivery and After-Sale Services |
| Field Testing | 36-45 | Field Testing Monitors, Check Population, Check Distance Wheel Slippage |
| Computer Trak Monitors | 46-157 | Component Location Drawings, Computer Trak 100 Monitor, Computer Trak 150 Monitor, Computer Trak 200 Monitor, Computer Trak 250 Monitor, Computer Trak 300 Monitor |
| Distance Sensors | 158-171 | Component Location Drawings, Distance Wheel, Radar, Radar Adapter |
| Seed Tube Sensors | 172-183 | Component Identification Drawings, Testing W/Deluxe Test Unit, Testing W/Standard Test Unit |
| Monitor Location Drawings | 184-187 | Green Monitor, Black Monitor, Standard Test Unit, Deluxe Test Unit, AC-DC Converter |
| Monitor Console Tests (Section 50) | 188-215 | Green Monitor W/Deluxe and Standard Test Unit, Black Monitor Without Alarm, Black Monitor with Alarm, Connect Power, Test Voltage, Test Low Rate, Test Audible Alarm |
| Dual-Rate Calibrated Monitor (Section 55) | 216-225 | Deluxe Test Unit, Standard Test Unit, Connect Power, Test Low Rate |
| Population Monitor (Section 60) | 226-259 | Location Drawings, Black Population Monitor, Green Population Monitor, Deluxe and Standard Test Units, Test Row 1 Failure, Test Planter Stop |
| Monitrol System (Section 65) | 260-341 | Monitrol Location Drawings, Connect Power, Test Voltage, Test Manual Adjustment, Harness Details, Wiring Diagrams |
| Contents and Index | 342-353 | Section Contents, Alphabetical Index |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Sensor signal voltage | +1 to +8 volts | p. 163 |
| Resistance for defective sensor | less than 1000 ohms | p. 174 |
| Rolled-up paper tube diameter | 1/2 in. | p. 183 |
| Distance Wheel 7.60-15 Distance to be marked off | 240 ft | p. 38 |
| Distance Wheel 7.50-20 Distance to be marked off | 280 ft | p. 38 |
| Power Module Fuse | 5 Amp | p. 137 |
